What is the primary indication for cast metal interim restoration?

The primary indication for a cast metal interim restoration is rooted in the ability of this type of restoration to endure significant functional demands. In clinical situations where a patient is unable to control or avoid excessive forces on a prosthesis, a cast metal interim restoration provides the necessary strength and durability. The material is capable of withstanding higher occlusal loads, making it suitable for patients who may have parafunctional habits, such as bruxism, or other factors that would subject the interim restoration to greater stress.

Cast metal restorations are designed to offer superior resistance to wear and fracture compared to alternatives like resin-based materials, which may be more vulnerable to distortion or failure under excessive loads. This makes cast metal a wise choice for maintaining the integrity of the work during the interim phase until a final restoration is placed. In summary, the use of cast metal interim restorations in circumstances of excessive forces ensures that both the functional needs and longevity of the interim prosthesis are prioritized effectively.